Sore breasts


I'm really needing advice on how you ladies manage to pump and feed. I don't breastfeed baby every time because he takes so long (over an hour) so half the time I pump, but my breasts are SO EXTREMELY sore constantly! I woke up in tears last night because they were so full, I was miserable. Please any advice on how you ladies do it would be greatly appreciated, I'm on the verge of giving up.